A market-wide average across qualities and sizes. Your stone's value depends on carat, color, clarity, cut, treatment, and origin.
Zoisite is a calcium aluminum silicate family spanning blue-violet tanzanite (its famous variety), green chrome zoisite, pink thulite, and the ruby-in-zoisite ornamental rock anyolite. Hardness 6-7 with one perfect cleavage direction calls for protective settings.
Market averages will not price your stone. GemstoneAI identifies gems and jewelry from a photo, checks authenticity and treatment signals, and gives you a real market valuation in seconds. Free to try.
The GemstoneAI market index for zoisite is $68 per carat as of 2026-08-04. That is a market-wide average across qualities, not a quote for a specific stone. Individual value depends on carat, color, clarity, cut, treatment, and origin.
Visual tests alone are unreliable. GemstoneAI analyzes a photo of your stone for identity, treatment indicators, and authenticity signals, then estimates market value. It is free to try.
Over the past 30 days the zoisite index moved +15.0%. Gem prices move on supply, demand, and metal markets; treat any single stone as a collectible first and an asset second.